A. Little Pony and Expected Maximum Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/453/problem/A Description Twilight Sparkle was playing Ludo with her friends Rainbow Dash, Apple Jack and Flutter Shy. But she kept losing.…
代码: #include<cstdio> #include<iostream> #include<cstring> #include<algorithm> using namespace std; int main() { int h,m,s; int h0,m0,s0; while(scanf("%d.%d.%d%d.%d.%d",&h0,&m0,&s0,&h,&m,&s)!=EOF) {…
分析:给出一个矩阵.问最短从一个点经过全部点以此回到起点的长度是多少.绘图非常好理解.先画3*4.3*3.4*4的点阵图案.试着在上面用最短路走一走,能够发现当矩形点阵的长宽都是奇数时,最短路中必然有一条斜线:而仅仅要长或宽有一个是偶数就能够通过直线来完毕最短路经.因此仅仅需推断一下两边的奇偶情况就能求最短路径了. #include<iostream> #include<cmath> using namespace std; int main() { int T,t=0,m,n;…